Energy vs Time
The Insight:
Most managers obsess over time management - blocking calendars, optimising schedules, and cramming more into each day.
But time is fixed; energy is variable. You have roughly the same cognitive capacity at 9 AM as at 3 PM, but your mental sharpness, creativity, and decision-making ability fluctuate dramatically throughout the day.
Energy management means identifying when you're naturally at your best and protecting those windows for your most important work.
Instead of fighting your biological rhythms or forcing productivity during low-energy periods, you work with your natural cycles to maximise both performance and sustainability.
The Tool: Energy Optimiser
4 steps to try now
01.
Track Your Energy Patterns And Rhthyms
Measure
For seven days, rate your energy level every two hours on a simple 1-5 scale (1 = depleted, 5 = peak).
Note what you're doing and how you feel mentally, not just physically. Most people discover predictable patterns: high energy mid-morning, post-lunch dip, late-afternoon resurgence.
Track both workdays and weekends to see your natural rhythm without external constraints. Also note what activities drain vs restore you - some meetings energise while others deplete, regardless of their importance. This data becomes your energy map.
02.
Categorise Work by Energy Demand
Sort
Divide tasks into three energy categories.
High-demand: strategic thinking, difficult decisions, creative problem-solving, challenging conversations, complex analysis.
Medium-demand: routine meetings, email processing, planning, administrative tasks.
Low-demand: data entry, simple communications, organising, reviewing documents.
Be honest about what requires peak mental capacity versus maintenance work.
03.
Align Work with Energy Windows
Plan
Schedule your high-demand work during peak energy periods and low-demand work during energy valleys.
If you're sharpest at 10 AM, that's when you tackle the strategic planning, not when you check email. Use post-lunch low energy for administrative tasks or easy meetings. Protect your peak 2-3 hours like sacred time - no random meetings, no "quick questions," no email checking.
When you must do demanding work during low-energy periods, build in extra time and breaks. This isn't about perfection; it's about intentional matching.
04.
Design Energy Recovery Rituals
Decompress
Create practices to restore energy after dips rather than pushing through.
Between demanding tasks, take 5-10 minutes for genuine restoration: walking, breathing exercises, or checking in with a colleague.
After draining meetings, don't immediately jump to the next thing - give yourself transition time. Schedule easier tasks or short breaks after you know you'll be depleted.
By noting what energised or drained you, you can adjust tomorrow's approach.
Why it works
Working with your natural rhythms rather than against them increases both quality and sustainability. You accomplish more in peak hours than you could in twice the time during low-energy periods.
Use it when
You feel busy but unproductive, find yourself struggling through important work at certain times, experience frequent afternoon crashes, or want to prevent burnout while maintaining high performance.
Bonus tip
Protect your energy as fiercely as you protect your time. Say no to energy-draining commitments during your peak hours, even if they seem important - your best thinking is your most valuable resource.
